videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Casio Celviano 400 Grand Hybrid Piano - Gearslutz @ Musikmesse 2016, Moog Mother 32 Semi modular synthesizer Sound Lab ADE 2015, Paul Maddox from Modal Electronics shows the 008 analogue synthesizer prototype at Musikmesse 2015